Glaub



(No Model.) 2 SheetsSheet 1.

R. O. UNGLAUB. APPARATUS FORREUTIFYING GLYQERINE.

No. 481,879. Patented Aug. 80, 1892.

(No Model.) 2 Sheets-Sheet 2,

R. O. UNGLAUB. 'APPARATUS FOR REUTIPYING GLYGBRINB.

No. 481.879. Patented Aug. 30, 1892.

NI'IED STATES ROBERT OSCAR UNGLAUB, OF PENDLE PATENT FFICE.

TON, NEAR MANCHESTER, ENGLAND.

SPECIFICATION forming part of Letters Patent No. 481,879, dated August30, 1892.

Application filed October 31, 1891. Serial No. 410,503. (No model.)Patented in England May 16, 1889, No. 8,196.

To all whom it may concern.-

Be it known that I, ROBERT OscAR UN- GLAUB, a subject of the Queen ofGreat Britain, residing at \Vhit Lane W'orks, Pendleton, nearManchester, in the county of Lancaster,England, have invented anew anduseful Apparatus for Rectifying Glycerine, (for which I have obtained apatent in Great Britain, No. 8,196, bearing date May 16, 1889,) of whichthe following is a specification.

The object of this invention is to abstract from glycerine theimpurities therein contained during the process of distillation.

According to this invention the glycerineis made to traverse upwardthrough a cylinder (preferably of copper) fitted with suitabledeflectors. The impurities collect on the deflectors and trickle down tothe bottom of the apparatus, while the rectified glycerine-vapor isdrawn off at the top of the cylinder by means of a pump and condensed.

In the accompanying drawings, Figure 1 represents a section of anapparatus for rectifying glycerine constructed according to thisinvention. Fig. 2 is a cross-section of the same on line A A, Fig. 1.Fig. 3 is a crosssection of the said apparatus on line B B, Fig. 1.Figs. 4, 5, and G are details, to an enlarged scale, of one of thebonneted pipes hereinafter referred to. Figs. 7, 8, and 9 are details ofoverflow-pipes and bonnets hereinafter referred to. Figs. 10, 11, and 12are plan and section of battle-plates and channel-section ring to anenlarged scale, hereinafter referred to.

The same letters and figures denote the same parts in all the figures.

a is a cylinder of copper or other suitable material, containing at itslower end two or more concentric nested cylinders b c d e, of anysuitable material, whereof I) and d are fastened air-tight to thebottomf of the cylinder a and are open at the top, and the cylinders cand e are covered in at the top airtight, but supported on brackets g gat the bottom, leaving a space between the lower edge of the saidcylinders and the bottom of the cylinder or. Above these cylinders b c de are bathe-plates h t' j 70, composed of circular plates 70 t' andannular plates hj, attached to channel-section rings D, one of which isshown in detail at Figs. 10 and 11. These rings are not closed, but havea space D left between the ends, as shown in Figs. 10 and 11. Theseopenings are preferably placed alternately on opposite sides of thecylinder, as shown in Fig. 1. The remainder of the cylinder a is dividedinto compartments by the division-plates z, in which are fixedconcentric rings of pipes Z, fitted with bonnets or covers m, details ofwhich to an enlarged scale are shown in Figs. 4, 5, and 6. The apparatusis also fitted with two rows of pipes 91., the upper ends of which arefitted with covers or bonnets 0, the lower ends thereof dipping intotraps p. The joint between the plates 2 and 6 5 the pipes Z and n ismade steam-tight by brazing orpacking. The upper end of the cylinder atis provided with a cover q, to which is fitted the safety-valve 1',opening inward, and the stand-pipes s and t, to which the pipes for.drawing oif the purified glycerine-vapor are attached.

a o w ware pipes fitted to the bottom of the cylinder a for the purposeof carrying off the impurities which collectin the chambersl 2 34.

The action of the apparatus is as follows: The crude glycerine is boiledin a suitable pan or still, on the top of which the cylinder at restsand is secured thereto steam-tight by bolts orother suitable means. Theglycerine- 8o vapor rising from the still passes up the cylinder 1),down between the cylinders 11 and a, up between cylinders c and d, andso on in the direction of the arrows past the bafiieplates h M It,throughthe pipes Z, through the orifices Z at the top thereof, downbetween the pipes Z and bonnets m, and so on with each successive tierof pipes till it reaches the top of the apparatus, where it is drawn ofiby a suitable pump and condensed. The impuri- 9o ties, together with acertain amount of glycerine, cling to the baffle-plates and bonnets anddrop down. Then a sufficient quantity of impure liquor has accumulatedon one divisionplato, it overflows and runs down the pipe 11. to 5 thenext lower level, and so on till it reaches the chambers 1 2 3 4, whenthe impure liquor drains by means of the pipes at o w 00 back into thestill to be re-evaporated till all the glycerine is driven oif andonlyimpurities remain. The liquid settling at each stage forms a trap toprevent the vapor or steam rising, so that the steam in one level isconstantly operating on the liquid immediately above and distilling it,and so on upward, the liquid as it gets into the upper levels gettingpurer, each stage being more pure than the one immediately below it. Theplates 2 are secured together by stay-bolts a.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In apparatus for rectifying glycerine, the concentric nestedcylinders b c d e, forming chambers 1 2 3 4 and open alternately at thetop and bottom, the cylinder a, bottomf, and the pipes to o w 00,connected with their respective chambers, for carrying off the collectedimpurities through and from the bottom, substantially as described.

2. In apparatus for rectifylng glycerine, the baffle-plates h 7 j 70,consisting of alternate disks and annular rings connected together

